Answer:
Choice 'D' (10x + 9) (10x-9) is the correct answer
Step-by-step explanation:
100x^2 - 81
This is a difference of squares...
therefore = (10x + 9) (10x - 9)
Answer:
6
Step-by-step explanation:
a=1/2 b*h
a=1/2 3*4
a=1/2 12
a=6
:)
Answer:
try d or c
Step-by-step explanation:
Answer:
66
Step-by-step explanation:
12(8)-9(8-6)-(12-9)(8)÷2=96-18-12 or 6(9)+(12-9)(8)/2=54+12
= 66 =66
